Title:
直流式灰溶融炉
Document Type and Number:
Japanese Patent JP3617579
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To eliminate the problems that since carbon is used as a movable electrode dipped in melted ash, the movable electrode is broken halfway owing to oxidization wear in a furnace, and hence melting efficiency, power source unit, and electrode original unit are lowered. SOLUTION: A fuzzy arithmetic operator 25 estimates the present position of a movable electrode 4 on the basis of the magnitude of a melting sound detected by a microphone 21, temperature of a heating part of the movable electrode 4 measured by a temperature sensor 24, and a current measured by a current meter 12. Hereby, the operator estimates a difference between the present position and an optimum position where the movable electrode 4 is not exposed from combusted ash A, and outputs it as an elevation instruction to a movable electrode elevator 10 whereby the movable electrode 4 is elevated and kept to and at the optimum position.
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Inventors:
Okazaki Kinzo
Masami Tsuruta
Masami Tsuruta
Application Number:
JP18899996A
Publication Date:
February 09, 2005
Filing Date:
July 18, 1996
Export Citation:
Assignee:
Fuji Electric Holdings Co., Ltd.
Fuji Electric Systems Co., Ltd.
Fuji Electric Systems Co., Ltd.
International Classes:
B09B3/00; F23G5/50; F27D11/10; H05B7/085; F23J1/00; (IPC1-7): F23G5/50; F23J1/00; F27D11/10; H05B7/085
Attorney, Agent or Firm:
Yuichi Morita